4.7 Article

Defective RuO2/TiO2 nano-heterostructure advances hydrogen production by electrochemical water splitting

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Accelerating water reduction towards hydrogen generation via cluster size adjustment in Ru-incorporated carbon nitride

Sara Ajmal et al.

Summary: The size of metal clusters and their interaction with the substrate greatly affect the performance and stability of electrocatalysts, with recent research focusing on improving water dissociation. Through density functional theory and experimental studies, it was found that the Ru55@CN catalyst showed the highest turnover rate and better stability due to its direct connection with the substrate.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Metal-organic frameworks derived anatase/rutile heterostructures with enhanced reaction kinetics for lithium and sodium storage

Guilong Liu et al.

Summary: The fabricated anatase-rutile heterostructure TiO2 electrode with abundant oxygen vacancies exhibited enhanced electronic/ionic transport and improved pseudo-capacitive behaviors. The theoretical calculation confirmed that the heterostructure favored the connection between TiO2 and carbon layers, leading to improved electronic conductivity and lower migration energy barriers for Li+ and Na+.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Interfacial engineering of Co nanoparticles/Co2C nanowires boosts overall water splitting kinetics

Pengyan Wang et al.

Summary: The study shows that by combining metallic cobalt nanoparticles with Co2C nanowires through interface engineering, a significantly reduced overpotential and high activity in water electrolysis can be achieved. The assembled electrolyzer, driven by a solar cell, presents a novel approach for the rational design of metal carbide-based highly efficient electrocatalysts.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Review Chemistry, Multidisciplinary

Anion Vacancy Engineering in Electrocatalytic Water Splitting

Ying Gao et al.

Summary: This review focuses on the impact of anion vacancy engineering on electrocatalysts for water splitting, including various synthesis strategies, characterization techniques, and the functions and challenges of anion vacancies in electrocatalysts.

CHEMNANOMAT (2021)

Article Chemistry, Physical

On the wrong assignment of the XPS O1s signal at 531-532 eV attributed to oxygen vacancies in photo- and electro-catalysts for water splitting and other materials applications

Hicham Idriss

Summary: The XPS O1s signal mistakenly attributed to oxygen vacancies is actually due to the adsorption of water molecules on the oxide surface under ambient conditions. Surface oxygen vacancies in binary or mixed metal oxide materials or catalysts will be oxidized instantly due to the strong adsorption energy of water, making it impossible for ex-situ measurements.

SURFACE SCIENCE (2021)

Article Chemistry, Physical

Ru nanoparticles supported on partially reduced TiO2 as highly efficient catalyst for hydrogen evolution

Li-Na Chen et al.

Summary: The study demonstrates the deposition of Ru nanoparticles on reduced TiO2 interface with oxygen vacancies to achieve superior HER performance. The high electrocatalytic activity of Ru/r-TiO2 is attributed to the promotion of water dissociation and weakening OH adsorption by reduced TiO2, facilitating the conversion of water to H2. This work provides an efficient strategy for designing high-performance HER catalysts.

NANO ENERGY (2021)

Article Chemistry, Physical

IrRuOx/TiO2 a stable electrocatalyst for the oxygen evolution reaction in acidic media

A. Martinez-Septimo et al.

Summary: Proton Exchange Membrane Electrolysis of Water (PEMWE) is a CO2-free process for producing H2, with the main challenge being the limited availability of Ir and Ru. By depositing IrRu loading on TiO2 and treating it thermally, a high-performance catalyst IrRuOx/TiO2 was obtained, showing superior stability and catalytic activity for the oxygen evolution reaction.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Materials Science, Multidisciplinary

Formation of hierarchical Co-decorated Mo2C hollow spheres for enhanced hydrogen evolution

Yi-Zhong Wang et al.

Summary: Water electrolysis is a promising technology for producing clean hydrogen fuel, but lacks efficient non-noble metal catalysts for large-scale application. This study introduces a multi-step strategy to prepare hierarchical Co-decorated Mo2C hollow spheres for enhanced hydrogen evolution reaction performance through unique hollow structures and Co species incorporation. The as-prepared CMCHSs exhibit significantly improved HER performance in acid with a low overpotential and good cycling durability.

RARE METALS (2021)

Article Engineering, Environmental

Template-free fabrication of MoP nanoparticles encapsulated in N-doped hollow carbon spheres for efficient alkaline hydrogen evolution

Jin Li et al.

Summary: Encapsulating transition metal phosphides into nitrogen-doped carbon materials is an effective strategy to enhance electrocatalytic performance. The synthesized MoP@NC hollow microspheres show excellent performance in alkaline hydrogen evolution reaction, attributed to their distinctive structure, high nitrogen-doping level, and synergistic effect between MoP and NC. Theoretical calculations suggest that the active sites of the catalyst mainly lie at Mo atoms adjacent to pyridinic N-doped carbon layer, and the interaction between MoP and pyridinic N atoms contributes to the enhanced HER performance.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Inorganic & Nuclear

Interfacial FeOOH/CoO nanowires array improves electrocatalytic water splitting

Heng Zhang et al.

Summary: Interface engineering is an effective strategy to enhance electrocatalytic performance through synergistic modulation of interface and micro-nano structures. The FeOOH/CoO-NWs/NF catalyst exhibits outstanding activity towards OER and HER, requiring a lower cell voltage for overall water splitting compared to IrO2 parallel to Pt/C.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

Article Chemistry, Physical

A chemical etching strategy to improve and stabilize RuO2-based nanoassemblies for acidic oxygen evolution

Qing Yao et al.

Summary: This study demonstrates a chemical etching strategy to fabricate a Ru/Fe oxide catalyst for OER, where etching of Fe species leads to the generation of abundant vacancies and enhances activity and stability.

NANO ENERGY (2021)

Article Chemistry, Multidisciplinary

Partially reduced Ru/RuO2 composites as efficient and pH-universal electrocatalysts for hydrogen evolution

Yanliu Dang et al.

Summary: Efficient Ru/RuO2 composites were found to exhibit high HER activity under non-acidic conditions, achieved through a simple strategy, making them suitable for alkaline solutions and even seawater, showcasing industrial prospects.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Article Chemistry, Physical

Oxygen-deficient TiO2 and carbon coupling synergistically boost the activity of Ru nanoparticles for the alkaline hydrogen evolution reaction

Zhongzhe Wei et al.

Summary: In this study, Ru nanoparticles supported on oxygen-deficient TiO2@carbon hybrids (Ru/TiO2-V-O@C) were efficiently fabricated for enhanced catalytic performance in the alkaline hydrogen evolution reaction. The synergistic cooperation between Ru, TiO2-V-O, and carbon dopant improved conductivity, promoted water dissociation, and optimized hydrogen adsorption free energy. This research provides insights into the design of multi-component nanostructures and the mechanism of alkaline HER.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Multidisciplinary

Synergistically Interactive Pyridinic-N-MoP Sites: Identified Active Centers for Enhanced Hydrogen Evolution in Alkaline Solution

Di Zhao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Multidisciplinary

Identifying the Transfer Kinetics of Adsorbed Hydroxyl as a Descriptor of Alkaline Hydrogen Evolution Reaction

Baoguang Mao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Multidisciplinary

Tailoring Lattice Oxygen Binding in Ruthenium Pyrochlores to Enhance Oxygen Evolution Activity

Denis A. Kuznetsov et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

Article Chemistry, Multidisciplinary

Operando Identification of the Dynamic Behavior of Oxygen Vacancy-Rich Co3O4 for Oxygen Evolution Reaction

Zhaohui Xiao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

Review Chemistry, Multidisciplinary

Recent progress of Ni-Fe layered double hydroxide and beyond towards electrochemical water splitting

Bo Wen Xue et al.

NANOSCALE ADVANCES (2020)

Article Chemistry, Physical

Modulation in Ruthenium-Cobalt Electronic Structure for Highly Efficient Overall Water Splitting

Yunkai Bao et al.

ACS APPLIED ENERGY MATERIALS (2020)

Article Chemistry, Physical

Coupling NiSe2-Ni2P heterostructure nanowrinkles for highly efficient overall water splitting

Pengyan Wang et al.

JOURNAL OF CATALYSIS (2019)

Article Nanoscience & Nanotechnology

Engineering the Atomic Layer of RuO2 on PdO Nanosheets Boosts Oxygen Evolution Catalysis

Yanmin Hu et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

Article Chemistry, Multidisciplinary

Well-Dispersed Ruthenium in Mesoporous Crystal TiO2 as an Advanced Electrocatalyst for Hydrogen Evolution Reaction

Shuying Nong et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Article Multidisciplinary Sciences

High-performance bifunctional porous non-noble metal phosphide catalyst for overall water splitting

Fang Yu et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Multidisciplinary

Palladium Phosphide as a Stable and Efficient Electrocatalyst for Overall Water Splitting

Fang Luo et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Multidisciplinary

Plasma-Engraved Co3O4 Nanosheets with Oxygen Vacancies and High Surface Area for the Oxygen Evolution Reaction

Lei Xu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2016)

Article Chemistry, Multidisciplinary

Shaped Ir-Ni bimetallic nanoparticles for minimizing Ir utilization in oxygen evolution reaction

Jinkyu Lim et al.

CHEMICAL COMMUNICATIONS (2016)

Article Chemistry, Physical

Highly defective CeO2 as a promoter for efficient and stable water oxidation

Fengli Liang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

Review Chemistry, Multidisciplinary

Earth-abundant inorganic electrocatalysts and their nanostructures for energy conversion applications

Matthew S. Faber et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

Article Chemistry, Multidisciplinary

Oxygen Vacancies Confined in Ultrathin Indium Oxide Porous Sheets for Promoted Visible-Light Water Splitting

Fengcai Lei et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

Article Chemistry, Multidisciplinary

Trap-Free Transport in Ordered and Disordered TiO2 Nanostructures

Julio Villanueva-Cab et al.

NANO LETTERS (2014)

Article Chemistry, Physical

Electron-pinned defect-dipoles for high-performance colossal permittivity materials

Wanbiao Hu et al.

NATURE MATERIALS (2013)